Noo Phước Thịnh
12*3+5*3+2*3=(12+5+2)*3.
=19*3.
=57.
12 x 3 + 5 x 3 + 2 x 3
= 3 x ( 12 + 5 + 2 )
= 3 x 19
= 57
12 x 3 + 5 x 3 + 2 x 3
= 3 x ( 12 + 5 + 2 )
= 3 x 19
= 57
12 x 3 + 5 x 3 + 2 x 3
= 3 x ( 12 + 5 + 2 )
= 3x 19
= 57
12x3+5x3+2x3
= 3x( 12+5+2)
=3x 19
= 57
k mik nha các bạn
12 × 3 + 5 × 3 + 2 × 3
= ( 12 + 5 + 2 ) × 3
= 19 × 3
= 57
12x3+5x3+2x3
= 36 + 15 + 6
= 51 + 6
= 57
12 x 3 + 5 x 3 + 2 x 3
= ( 12 + 5 + 2 ) x 3
= 19 x 3
= 57
12.3+5.3+2.3
=3.(12+5+2)
=3.19
=57
Vậy 12.3+5.3+2.3=57
12 x 3 + 5 x 3 + 2 x 3
= 3 x ( 12 + 5 + 2 )
= 3 x 19
= 57